Gila nigra, Headwater chub

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Gila nigra Cope, 1875

Headwater chub
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Image of Gila nigra (Headwater chub)
Gila nigra
Picture by Sandra J. Raredon / Smithsonian Institution, NMNH, Div. of Fishes

分类 / Names 俗名 | 同种异名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Cypriniformes (Carps) > Leuciscidae (Minnows) > Laviniinae
Etymology: Gila: A river flowing from SW Mejico to south Arizona.
More on author: Cope.

Environment: milieu / climate zone / depth range / distribution range 生态学

; 淡水 底中水层性. 溫帶

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

North America: Gila River system (Colorado River drainage) in New Mexico and Arizona, USA.
北美洲: 美國亞歷桑那州。

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 38.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 86798)

简单描述 型态特徵 | 形态测量图

背的软条 (总数): 8; 臀鳍软条: 8. Previously thought to be of hybrid origin and similar to parental Gila robusta and G. intermedia. Dorsal and anal fins with 8 rays; lateral line with 71-90 scales, usually fewer than 80; first gill arch with 10 or more rakers; and often with diffuse stripes on dark gray or brown side, dark fin membranes (Ref. 86798).

生物学特性     字汇 (例如 epibenthic)

Inhabits pools and undercut banks of headwaters, creeks and small rivers. Maximum length is presumably about 38 cm TL (Ref. 86798).

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | | 孕卵数 | 仔鱼

北美洲: 美國亞歷桑那州。

主要参考文献 Upload your references | 参考文献 | 合作者 | 合作者

Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)

世界自然保护联盟红皮书 (Ref. 130435)

  临近濒危 (NT) ; Date assessed: 09 February 2012

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的





人类利用

FAO - Publication: search | FishSource |

更多信息

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生态毒物学
繁殖
成熟度
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孕卵数

卵的发育
年龄范围
成长
体长-体重
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形态测量图
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速度
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Otoliths
脑重体重比
眼睛色素

工具

特别资料

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网络资源

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes: , | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: 基因组, 核苷酸 | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | 树状分类阶层 | Wikipedia: 转至, 搜寻 | World Records Freshwater Fishing | Zoobank | 动物学的记录

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
营养阶层 (Ref. 69278):  2.0   ±0.2 se; based on size and trophs of closest relatives
回复力 (Ref. 120179):  低的, 最小族群倍增时间4.5 - 14 年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (28 of 100).